This paper studies the mechanism of adverse selection in the credit market using a sample of mortgage applications that are approved by lenders but rejected by applicants. We find that a low-risk applicant is more likely to reject a loan offer, except when the offer is made by an informed lender. Using jumbo mortgage and loan acceptance rate data to proxy for the information advantage, we find that lenders with a lower likelihood of being rejected are indeed better informed than others.

Different modes of external finance provide heterogeneous benefits for the borrowing firms. Informal finance offers informational advantages whereas formal finance is scalable. Using unique survey data from China, we find that informal finance is associated with higher sales growth for small firms but lower sales growth for large firms. We identify a complementary effect between informal and formal finance for the sales growth of small firms, but not for large firms. Co-funding, thereby simultaneously using the informational advantage of informal finance and the scalability of formal finance, is therefore the optimal choice for small firms.

We examine China’s June 2013 liquidity crunch as a negative shock to banks and analyze the wealth effects on exchange-listed firms. Our findings suggest that liquidity shocks to financial institutions negatively impact borrower performance, particularly borrowers reporting outstanding loans at the end of 2012. Stock valuations of firms with long-term bank relationships, however, outperform the market and experience smaller subsequent declines in investment than peers lacking solid banking relationships. This effect is the strongest for firms that enjoy good relations with China’s large state-owned banks or foreign banks, and weakest for firms whose connections are solely with local banks. We document a positive correlation between the stock performances of firms and the stock performances of lender banks and the likelihood of lender banks operating as net lenders in the interbank market. These results suggest that banks transmit liquidity shocks to their borrowing firms and that a long-term bank-firm relationship may mitigate the negative effects of a liquidity shock.

Banking competition may enhance or hinder the financing of small and medium-sized enterprises. Using a survey on the financing of such enterprises in China, combined with detailed bank branch information, we investigate how concentration in local banking market affects the availability of credit. We find that lower market concentration alleviates financing constraints. The widespread presence of joint-stock banks has a larger effect on alleviating these constraints, than the presence of city commercial banks, while the presence of state-owned banks has a smaller effect.

We examine the impact of bank liquidity creation on systemic risk and its heterogeneous impact over the network connectedness. We find that excessive liquidity creation increases the systemic risk with a “U shape” relationship, while internal and external liquidity creation drives systemic risk in a different way. Network connectedness of banks strengthens the relationship between liquidity creation and systemic risk. Our results provide supporting evidence on regulating bank liquidity creation to enhance the financial stability.